THE EFFECT OF LOCALIZED IONOSPHERIC PERTURBATIONS ON SUBIONOSPHERIC VLF PROPAGATION ON THE BASIS OF FINITE-ELEMENT METHOD

被引:17
作者
BABA, K [1 ]
HAYAKAWA, M [1 ]
机构
[1] UNIV ELECTROCOMMUN,CHOFU,TOKYO 182,JAPAN
关键词
D O I
10.1029/95RS01561
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The purpose of this paper is to propose the use of finite element method in investigating the effect of localized perturbations in the lower ionosphere on subionospheric VLF propagation. Due to the complexity of the method, we have analyzed only a two-dimensional case where a localized perturbation lies on the great circle path between the transmitter and receiver. The formulation is first. made, and a few computational results are presented in order to indicate the effectiveness of this finite element, method.
引用
收藏
页码:1511 / 1517
页数:7
相关论文
共 11 条
[1]  
BABA K, 1993, J76B11 I T EL INF CO, P244
[2]   PHASE AND AMPLITUDE PERTURBATIONS ON SUBIONOSPHERIC SIGNALS EXPLAINED IN TERMS OF ECHOES FROM LIGHTNING-INDUCED ELECTRON-PRECIPITATION IONIZATION PATCHES [J].
DOWDEN, RL ;
ADAMS, CDD .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1988, 93 (A10) :11543-11550
[3]   WHISTLER-INDUCED AMPLITUDE PERTURBATION IN VLF PROPAGATION [J].
HELLIWELL, RA ;
KATSUFRAKIS, JP ;
TRIMPI, ML .
JOURNAL OF GEOPHYSICAL RESEARCH, 1973, 78 (22) :4679-4688
[4]   LIGHTNING-INDUCED ELECTRON-PRECIPITATION EVENTS OBSERVED AT L-APPROXIMATELY-2.4 AS PHASE AND AMPLITUDE PERTURBATIONS ON SUBIONOSPHERIC VLF SIGNALS [J].
INAN, US ;
CARPENTER, DL .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1987, 92 (A4) :3293-3303
[5]   FINITE-ELEMENT SOLUTION OF UNBOUNDED FIELD PROBLEMS [J].
MCDONALD, BH ;
WEXLER, A .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1972, MT20 (12) :841-847
[6]   SOME RESULTS OF A MODE-CONVERSION PROGRAM FOR VLF [J].
PAPPERT, RA ;
SNYDER, FP .
RADIO SCIENCE, 1972, 7 (10) :913-&
[7]   3-DIMENSIONAL MODELING OF SUBIONOSPHERIC VLF PROPAGATION IN THE PRESENCE OF LOCALIZED D-REGION PERTURBATIONS ASSOCIATED WITH LIGHTNING [J].
POULSEN, WL ;
BELL, TF ;
INAN, US .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1990, 95 (A3) :2355-2366
[8]  
REAGAN JB, 1982, AGARD C P, V305, P33
[9]   INTERACTIONS BETWEEN WHISTLER-MODE WAVES AND ENERGETIC ELECTRONS IN THE COUPLED SYSTEM FORMED BY THE MAGNETOSPHERE, IONOSPHERE AND ATMOSPHERE [J].
RYCROFT, MJ .
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1991, 53 (09) :849-858
[10]   MODEL PREDICTIONS OF SUBIONOSPHERIC VLF SIGNAL PERTURBATIONS RESULTING FROM LOCALIZED, ELECTRON PRECIPITATION-INDUCED IONIZATION ENHANCEMENT REGIONS [J].
TOLSTOY, A ;
ROSENBERG, TJ ;
INAN, US ;
CARPENTER, DL .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1986, 91 (A12) :3473-3482